Job-printing press.



' PATENTED JUNE 9, 1903. F. W. PGHLI JOB PRINTING PRESS.

APPLIcA'rImx FILED JAN. 27. 1903.

2 SHEETS-SHBB'1' 1,

' 1m MODEL.

I al fiepq z ys ma "cams PETiRS co. PuoYo-m-Ha" warm srnwb A PATENTEDJUNE 9, 1903;

F. W. POHL. JOB PRINTING PRESS. APPLIUATION FILED JAN. 27. 1903.

2 SHEETS-SHEET 2 N0 EQDEL.

no. 730,396; I

UNITED STATES Patented June 9, 1903. I

FRANK w. PonL, on ST. CLOUD, MINNESOTA.

JOB-PRINTING Passe.

SPECIFICATION forming part of Letters Patent No. 730,396, dated June 9,1903; Application filed January 27, 1903. Serial No. 144L776. (Nomodel.)

presses, and its object is to produce a job-' press that shall bereliable and rapid in oper-- ation, simple in construction, and whichmay,

be driven with comparatively small expenditure of power.

My invention consists in the construction: and combination of partshereinafter de-' scribed, and particularly pointed out in the claims andshown in the accompanying drawings, forming a part of thisspecification.

, Referring to the drawings, Figure 1 is a rear elevation of ajob-printing press constructed in accordance with my invention. Fig. 2is an elevational sectional view along the line 2 2 of Fig. 1. Fig. 3 isa front elevation, and Fig. 4 is a side elevation. f

In the various views correspondingparts: are indicated by the samerefereuce-charac-i ters throughout.

The frame of the press consists chiefly of standards 10.01? the formshown in Figs.2

and 4, each of said standards forming a side of the supporting-frame forthe operating parts of the press. 11 isa main driving-shaft supported injournals in the lower part of the standards 10 l0 and having fiy-wheels12 12.

Each of the fly-wheels 12 carries a projecting pin 13, upon which isjournaled one end of a connecting-rod 14, which is pivotally connectedat 15 to a pin 16, projecting from the side of a reciprocating bed 17-.The standards 10 10 are slotted at 18 18 to permit the reciprocation ofthe pins 16 16, and ways19 19 are provided on the inner. surfaces of thestandards 10 10 to guide the movements of the reciprocating bed 17 andmaintain it always in a perfectly vertical position.

Mounted on the main driving-shaft 11, near one end thereof, but betweenthe standards 10 10, is a bevel-gear 20, which cooperates with abevel-gear 21 at the end of the rotating shaft 22. At the upperends ofthe shafts 22, of which there is one on either side of the machine, arebeveled gears 23 of the same best shownin Fig. 2.

size as the gears 21 at the lower ends, which engage with a gear 24,similar insize to the gear 20, carried by the main driving-shaft. Thegears 24 are mounted upon the shaft 25,

which carriesrigidly mounted thereon the impression-roller 26.

The shaft 25, upon which the impressioncylinder is mounted, is journaledin plates 27, which are adjustahly mounted in frames 27, set-screwsbeing provided on the frames 27 for the adjustment of plates 27 therein.The frames 27 are slidably mounted in ways 28 and 29, provided on theinner surfaces of the standards 10 10, which form sides of the press,and movement of the frames 27 in the ways 28 and 29 is brought about bymeans of a rock-shaft 41, having arms rigidly secured thereby and havingat their free ends pins which engage with vertical slots in lugsprojecting rearward from the frames 27, as The rock-shaft has attachedthereto at one end, as shown in Figs. 2 and 3, an operating-lever 42, bymeans of which the shaft may be conveniently oscillated, as will bereadily understood from an inspection of the drawings. Journaled also inthe plates 27' is the upper one of a pair of tape-carrying rolls 31 32,the lower one of which is supported in bearings afforded by thestandards-1O 10.

Supported under and partly behind, the impression-cylinder 26 is acurved guide-plate 33, which corresponds in curvature to theimpression-cylinder. At some distance below the impression-cylinder-is atable 3e, upon which the printed sheets are to be piled by means offlies 35 35 35,mounted upon a rockshaft 36, to which oscillatorymovement is imparted from a crank-shaft 38 by means of a rocker-arm 37,carried by the rock-shaft and slotted at one end to engage with thecrank-shaft 38.

Inking devices of preferred form for the type carried by thereciprocating bed 17 are shown in the various figures, the bentsupporting-rods for the inking-rolls being adapted to secure propercontact with thesupply-roll and permitting the inking-rolls to be drawnup over the supply-roll and held while adding or distributing ink.

It will be observed from an inspection of .the figures of the drawingsthat at each end of the impression-cylinder a portion of the peripheryof the cylinder is provided with cogs adapted to engage with racksprovided along the vertical margins of the reciprocating bed; but asthis construction forms no part of my invention I lay no claim thereto.

The operation of my improved job-printing press will be readilyunderstood from the foregoing description and the accompanying drawings.The operator stands in front of the machinethat is to say, at the leftof Figs. 2 and 4.and feeds the sheets by hand against gage-pins or thelike. A sheet having been placed in position and motion imparted to thedriving-shaft 11, the impressioncylinder 26 is caused to rotate and thesheet will be seized by grippers mounted thereon and carried around bythe cylinder until it has made approximately a half-revolution, when itwill be released by the gripper and delivered to the receiving-table 34by means of the tapes and flies above mentioned. As the sheet passesaround with the impressioncylinder it is brought in contact with thetype carried by the reciprocating bed 17 and receives an imprinttherefrom, the reciprocations of the bed 17 and the impression-cylinder26 being so timed that the downward movement of the bed 17 takes placesynchronously with the downward travel of the grippersontheimpression-cylinder. Proper contact between the sheet carried by theimpression-cylinder and the type of the reciprocating bed is insured bythe cogs at the periphery of the cylinder and the vertical margins ofthe reciprocating bed.

The frames 27, in which the shaft 25 of the impression-cylinder isadjustably mounted, are normally held in position to bring theimpression-roller in contact with the type on the form-bed; but if forany reason it is desirable to prevent contact of the cylinder and thetype, as when no sheet of paper is on the cylinder, the lever 42 may bethrown downward and the frames 27 retracted about oneeighth of an inch,which is s'ufficient to prevent the contact of the impression-cylinderand type.

It is to be understood that I do not desire to be limited to the exactform and construction of the parts described and shown, but reserve theright to make such modifications and changes of proportions therein asmay be done without departing from the spirit of the invention.

What I claim as my invention, and desire to secure by Letters Patent, is

1. In a job-printing press, the combination of aVertically-reciprocating bed, a rotating impression-cylinder, drivingdevices for said bed and cylinder, a curved sheet-guide below saidcylinder, a rock-shaft carrying flies, a crank-shaft, and an arm on saidrock-shaft operatively engaged by said crank-shaft, all substantially asdescribed.

2. In a job-printing press, the combination of avertically-reciprocating' bed, a rotating impression-cylinder, drivingdevices for said bed and cylinder, a curved sheet-guide beneath saidcylinder, continuously-traveling tapes in front of said sheet-guide,means for driving said tapes, and oscillating flies, substantially asdescribed.

3. In a job-printing press, the combination of a frame having sidestandards, a reciprocating bed, vertical guideways for saidreciprocating bed provided in said standards, a continuously rotating.impression cylinder, frames in which said cylinder is journaled,horizontal guides for said frames provided on said standards, and meansfor shifting the position of said cylinder-carrying frames in saidguides, said means comprising a rockshaft, arms mount-ed thereon andconnected with said frames, and a lever for imparting movement to saidrock-shaft, substantially as described.

4. The combination in a printing-press of the class described of animpression-cylinder, a pairof supporting-standards, ways provided on theinner surfaces of said supportingstandard's, frames mounted in saidways,

means for shifting the position of said frames, plates carried by saidframes and adjustable therein, and journals provided in said plates forsaid impression-cylinder.

In testimony that I claim the foregoing as my own I have hereto aflixedmy signature in the presence of two witnesses.

FRANK W. PO HL.

- Witnesses O. F. MACDONALD, FRED. SCHIEPLIN..

